I made it with two straps: one big one to put on my back, and a small one, so I can hang it up in my hall way closet.
Granted, this isn't perfect. I made it in between nursing my kid and taking care of my five year old. You haven't known multi tasking until you manage to sew a yoga mat bag, while nursing an infant.
Anyway, sorry for the blurry pics. I had fun making this. I just need more fabric.